<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8" />
        <meta name="viewport" content="width=device-width, initial-scale=1.0" />
        <meta http-equiv="X-UA-Compatible" content="ie=edge" />
        <title>v-on指令基础</title>
    </head>
    <body>
        <!-- 2.html结构 -->
        <div id="app">
            <input type="button" value="v-on指令" v-on:click="doIt">
            <input type="button" value="v-on简写" @click="doIt">
            <input type="button" value="双击事件" @dblclick="doIt">
            <h2 @click="changeFood">{{ food }}</h2>
        </div>
        <!-- 1.开发环境版本，包含了有帮助的命令行警告 -->
        <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
        <script>
            // 3.创建Vue示例
            var app = new Vue({
                el:"#app",
                data:{
                    food:"西兰花炒蛋"
                },
                methods:{
                    doIt:function(){
                        alert("Just do it!");
                    },
                    changeFood:function(){
                        //console.log(this.food);
                        this.food += "好好吃！"
                    }
                }
            })
        </script>
    </body>
</html>